Wherein hero questions his trigger happy ways

The button in this hand is a call down expert, but occasionally gets aggressive trying to steal pots or with good hands. I haven't played that much with him, he's 53/17/1 over 66 hands. The BB has loose stats as well: 51/32/1.6 over 100 hands, all datamined. I haven't noticed his play at all at this table, good or bad.

Party Poker 5/10 Hold'em (6 max, 6 handed) FTR converter on zerodivide.cx

Preflop: Hero is UTG with Q[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">Hero raises</font>, <font color="#666666">2 folds</font>, Button calls, <font color="#666666">1 fold</font>, <font color="#CC3333">BB 3-bets</font>, <font color="#CC3333">Hero caps</font>, Button calls, BB calls.

Flop: (12.40 SB) T[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, <font color="#CC3333">Hero bets</font>, Button calls, BB calls.

Turn: (7.70 BB) 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">BB bets</font>, Hero?